从校园地图中选取有代表性景点，抽象成一个无向带权图。以图中顶点表示校内各景点，存放景点名称、代号、简介等信息。可查询景点信息和两景点的最短路径。-Choose a representative　the campus map attractions, abstracted into an undirected weighted graph. Vertex to map the school attractions representation, storage attractions names, code names, profiles and other information. Discover the shortest path to information on attractions and two attractions.